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Finding the Fourth Proportional to 135,073.90, 202,392.15 and 127,200.70

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Solution

The fourth proportional to 135,073.90, 202,392.15 and 127,200.70 is: 190,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,073.90 : 202,392.15 = 127,200.70 : x
  2. Step 2: Convert to fraction form
    135,073.90/202,392.15 = 127,200.70/x
  3. Step 3: Cross multiply
    135,073.90x = 202,392.15 × 127,200.70
  4. Step 4: Simplify right side
    135,073.90x = 25,744,423,154.51
  5. Step 5: Solve for x
    x = 25,744,423,154.51/135,073.90
  6. Step 6: Final answer
    x = 190,595.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.